Stapling machine



Jung 6, 1933. L. M. HlLE.

STAPLING MACHINE Filed Sept. 14 1931 4 Sheets-Sheet l June a, 1933. L. M. HILE 1,913,117

STAPLING MACHINE Filed Sept. 14, 1931 4 Sheets-Sheet 2 4 Sheets-Sheet 3 June 6, 1933. y L. M. HILE STAPLING MACHINE Filed Sept. 14, 1931 fry/472F07 i PM Sheet 4 June 6, 1933. M, HILE STAPLING' MACHINE Filed Sept. 14, 1951 4 Sheets- Patented June 6, 1933 UNITED STATES LESLIEM. HILE, or BENTON HARBon'MIoHIGAiv srArLme MACHINE Application filed September 14, 1931. Serial No. 562,722.

This invention relates to machinery for stapling receptacles, such as berry boxes or trays, and more particularly to machines of this kind in which the receptacle is made on a rotary form, in combination with a stapler that inserts staples in the different sides of the receptacle successively. 'Generally stated, the object of the invention is to provide a novel and improvedconstruction and arrangement whereby the power driven instrumentalities for rotating the receptacle form are automatically disconnected,and the rotation of the form stopped, as soon as the final staples are inserted in 115.. the last side of the receptacle, by means of improved tripping mechanism for automatically disconnecting the power, in properly timed relation to the operation of the stapling mechanism and the rotary form.

It is also an object to provide certain details and features of construction and combinations tending to increase the general efficiency and the desirability of a stapling machine having automatic stopping mecha- 1 nism of this particular character.

To the foregoing and other useful ends, the invention consists in matters hereinafter set forth andclaimed, and shown in the accompanying drawings in which--- Fig. 1 is a front elevation of a receptacle stapling machine involving the principles of the invention. v V

Fig. 2 is a detail section on line 2-2 in Fig. 3 of the drawings.

Fig. 3 is a side elevation of the machine shown in Fig. 1 of the drawings.

Fig. 1 is a perspective of the receptacle forming and stapling instrumentalities, and adjacent parts.

. 5 1 Fig. 5 is a detail section on line 5-5 in Fig. 30f the drawings, on a larger scale.

Fig. 6 is an enlarged detail section on line 616 in Fig.3 of the drawings.

Fig. 7 is a perspective of a box or receptacle, in the form of a berry box or tray,

that can be made on the said machine.

As thus illustrated, the invention comprises a rotary form 1 of a" shape to producethe desired receptacle, preferably four .59 sided and tapered, mounted on the shaft 2,

which extends horizontally at the upper end I i of the pedestal 3, which latter has a base 4, that supports the ,entire machine. Said shaft 2 is rotated by the Geneva movement 5, shown in Fig. 5 of the drawings, from the shaft 6, whichlatter is also mounted in suitable bearings on the pedestal orbody of the machine. The shaft 6 is driven by a sprocket chain 7, enclosed in the housing 8, from the main driving shaft 9, whereby the rotation of the receptacle form isintermittent, there being four partial rotations for each complete rotation, for each receptacle. The receptacle is held on the form by the hollow member or mold 1 10, mounted on the upper end of the swinging rod 11, shaped like the form 1, sothat thismold or cap-like member may be swung outward to release the finished receptacle. The stapling mechanism 12 is of any suitable known or approved character, but is preferably adapted to drive the two staples 13 simultaneously, in each side of the box or receptacle, through the rim portion thereof, at the anglesshown, as illustrated in Fig. 7 of the drawings. Thus there are four actu ations of the said stapling mechanism for each receptacle, and for each operation two staples are driven. The Geneva movement 5 is timed to partially rotate the basket form immediately after each stapling operation, and is adapted, as: will be readily understood, to maintain the form in stationary position during the stapling operation.

Theuwire for the staples may be fed in any suitable or desired manner, as by the feed rolls 14, which latter are common and well-known. It will be understood that the staplers are operated by the vertically reciprocating rod or shaft 15, which latter is suitably connected by a cam or eccentric device (not shown) with the shaft 9 previously mentioned.

To assist in holding the work in place, on the form, and to guide the hoop strip 16 into position around the rim of the receptacle, a pivoted presser arm 17 is provided and controlled by the rod 18 in any suitable manner, the spring .19 serving to keep the said presser arm yieldingly pressed against the receptacle rim.

The parts thus far described are old and well-known.

To prevent further rotation of the receptacle form 1, after the receptacle is finished or completed, instrnmentalities are provided as follows: The shaft 9 is provided with a clutch 20 of well-known form, and thefoot lever or treadle 21 is suitably connected to rods 22, bell crank 23, and rod 24 with said clutch, so that this clutch may be closed by the operator or attendant at will, thereby to start the operation of the machine. The shaft 6 is provided with a pinion 25 which engages the gear 26 on the journal 27 fixed in the stationary casing 8 previously mentioned. The gear wheel 26 is rigid with the disk 28, and a slotted plate 29 is free to slide up and down on the journal 27, this plate being provided on its inner side with a roller 30. The plate 29 is connected by a rod 31 with the clutch mechanism 20, whereby downward movement of this rod will open the clutch and stop the machine, inasmuchas the power applied to the pulley 32 011 said shaft 9 will be interrupted by the opening of the clutch, he closing of the latter being necessary in order to transmit power from said pulley to the shaft 9, by which the machine is operated. The disk 28 has a notch 33 in the edge portion thereof, and When this notch encounters the roller 30, the plate 29 will move downward, by gravity, and thereby open the clutch and stop the machine. The rotation of the disk 28 is so timed, therefore, that the roller 30 enters the notch 33 after the driving of the last pair of staples 13 in the receptacle. Immediately, and automatically, the machine is stopped, and the receptacle can be taken off the form, and fresh materials can then be placed on the form for the next receptacle. As the rod 18 is connected to the treadle 21,'it follows that the presser arm 17 is released from the work automatically, in properly timed relation, by the engagement of the roller 30 with the notch 33. A spring 34 operates to draw the rod 31 downward, when the machine is thus automatically stopped, and this spring also serves to draw the rod 18 downward, thus disengaging the presser arm 17 from the work. hen the treadle 21 is pressed downward, the plate 29 is lifted, to disengage the roller 30 from the said notch, and theclutch 20 is closed, and the spring 19 is caused to push upwardly on the outer end of the arm 17, thus causing this presser arm to firmly engage the work. The automatic trip thus provided, for opening the clutch and stop ping the machine, operates accurately to stop the machine at the precise moment required, and is especially effective in connection with the Geneva movement for opcrating the rotary basket form, as the automatic stoppage leaves the Geneva movement in the exact position necessary for the starting of the machine for the next receptacle.

It will be seen that another treadle 35 is provided for operating the rod 11, to throw the mold 10 outward, when the basket is finished. It will also be seen that a guide 36'serves to guide the back and forth motion of the rod 11, and serves to prevent this rod from'being displaced laterally, whereby the mold 10 will always accurately engage the basket.

1V hat I claim as my invention is:

1. In a stapling machine for stapling the successive sides of receptacles, a rotary straight-sided receptacle form, a rotary mold sin'iilarly shaped to receive said form, with the r-ceptacle materials between them, mechanism for intermittently rotating said form and mold about a fixed axis, to bring first one straight side of the receptacle and then the next into position to be stapled, with a pause each time between successive power means to operate said means for the mold and form, automatic mechanism controlled by the rotation of the form and 01 crative in timed relation thereto for automatically disconnecting the power receiving means and thereby stopping the operation of the machine after the final stapling operation on the receptacle, at the end of the final pause of said form, and means for causing relative movement of the form and mold toward and away from each other.

2. A structure as specified in claim 1, said mold being rotated by the rotation of the form, said automatic mechanism comprising a rotary disk having a notch in the edge thereof, and movable means held against movement upon the periphery of said disk, but operative by engagement with said notch to move into position to disconnect the power.

3. A structure as specified. in claim 1, said automatic mechanism comprising a pinion, a gear wheel engaging said pinion, a disk rigid with said gear wheel and provided with a notch in the edge thereof, a slotted plate movable on the axis of said gear wheel, a roller on said plate to engage the periphery of said disk, and a connection between said plate and the power means.

4. A structure as specified in claim 1, said form operating means comprising a Geneva movement, and said automatic mechanism comprising rotary means operated by the shaft of said Geneva movement, said rotary means having power tripping means operative in timed relation to the Geneva movement and the rotary form.

5.,A structure as specified in claim 1, said receptacle form operating means comprising a Geneva movement, and including a sprockrotating said shaft, said automatic mechanlsm comprising a p nion on said shaft, a

fixed journal adjacent said shaft, a gear wheel on said ournal for engaging sald pmion, a dlsk r1g1d with sa1d gear wheel and provided with a notch in the edge thereof,

a member slotted to slide up and down on said journal, a roller on said member toengage the periphery of said disk, adapted to enter said notch and cause said member to gravitate downward, and a connection between said member and the power means.

7. A structure as specified in claim 1, as between the form and the mold, one being rotated by the rotation of the other, said rotary form being rectangular and having a fiat side for each stapling operation, with the sides equidistant from said axis, and said automatic mechanism having power tripping means operative in timed relation to the successive operations on the diiferent sides of said form to automatically disconnect thepower after the stapling operation on the last side of the form.

8. A structure asspecified in claim 1, comprising a presser arm for engaging the top hoop strip for the receptacle, upon each flat side thereof, equidistant from said fixed axis, and means whereby said mechanism is operative to disengage said presser arm from the finished receptacle.

9. A structure as specified in claim 1, comprising a swinging rod upon which said rotary mold is mounted, a foot treadle for operating said rod, and means for guiding said rod.

10. In a stapling machine for stapling the successive sides ofreceptacles, a rotary receptacle form, mechanism for intermittently rotating said form, to bring first one side of the receptacle and then the next into position to be stapled, power receiving means to operate said meansfor rotating the form, and automatic mechanism controlled by the rotation of the form and operative iii-timed relation thereto for automatically disconnecting the power receiving means and thereby stopping the operation of the machine after the final stapling operation on the receptacle, said automatic mechanism comprising a pinion, a gear wheel engaging said pinion, a disk rigid with said gear wheel and provided with a notch in the edge thereof, a slotted plate movable on the axis of said gear wheel,a roller on said plate to engage the periphery of said disk, and

a connection between said plate and the power means. i

11. In a stapling machine for stapling the successive sides of receptacles, a rotary re ceptacle form, mechanism for intermittently rotating said form, to bring first one side of the receptacle and then the next into position to be stapled, power receiving means to operate said means for rotating the form, and automaticfmechanismcontrolled by the rotation of the form and oper-r ative in timed relation thereto for automatically disconnecting the power receiving means and thereby stopping the operation of the machine afterthe final stapling operation; on the receptacle, said form operating means comprising a Geneva movement, and said automatic mechanism comprising rotary means operated by the shaft of said Geneva movement, said rotary means hav ing power tripping means operative in timed relation to'the Geneva movement and the rotary form.

12. In a stapling machine for stapling the successive sides of receptacles, a rotary receptacle form, mechanism for intermittent- 1y rotating said form, to bring first one side of the receptacle and then the next into position to be stapled, power receiving means to operate said means for rotating the form, and automatic mechanism controlled by the rotation of the form and operative in timed relation thereto for automatically disconnecting the power receiving means and thereby stopping the operation of the machine after the final stapling operation on the receptacle, said receptacle form operating means comprising a Geneva move ment, and including a sprocket chain 631-- H tending from the Geneva movement to the power means, and said automatic mechanism comprising rotary means operated by the power transmitted by said sprocket chain, said rotary means having power tripping means operative in timed relation to the Geneva movement and the rotary form.

13. In a stapling machine for stapling the successive sides of receptacles, a rotary receptacle form, mechanism for intermittently rotating said form, to bring first one side of the receptacle and then the next into position to be stapled, power receiving means to operate said means for rotating the form, and automatic mechanism controlled by the rotation of the form and operative in timed relation thereto for automatically disconnecting the power receiving means and thereby stopping the operation a pinion on said shaft, a fixed journal adja-.

cent said shaft, a-gear wheel on said journal for engaging said pinion, a disk rigid with said gear wheel and provided with a notch in the edge thereof, a member slotted to slide up and down on said journal, a

roller on said member to engage the periphery of saiddisk, adapted to enter said notch and cause said member to gravitate downward, and a connection between said member and the power means.

Specification signedthis 10th day of September, 1931.

' LESLIE M. HILE. 

